Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Depth Perception and Spatial Vision01:15

Depth Perception and Spatial Vision

Depth perception is the ability to perceive objects three-dimensionally. It relies on two types of cues: binocular and monocular. Binocular cues depend on the combination of images from both eyes and how the eyes work together. Since the eyes are in slightly different positions, each eye captures a slightly different image. This disparity between images, known as binocular disparity, helps the brain interpret depth. When the brain compares these images, it determines the distance to an object.
Vision01:24

Vision

Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
Anatomy of the Eyeball01:20

Anatomy of the Eyeball

The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle layer, the vascular tunic,...
False Memories01:18

False Memories

False memories represent a cognitive distortion in which individuals recall events that did not happen, or remember them in an altered form. This phenomenon highlights the brain's constructive nature in processing and recalling memories, emphasizing that memory is not a perfect representation of past events but rather a dynamic reconstruction influenced by various factors.
One primary source of false memories is misattribution, where individuals incorrectly associate external information with...
Extrasensory Perception01:23

Extrasensory Perception

Extrasensory perception, or ESP, suggests the ability to perceive events beyond the conventional senses of sight, hearing, and touch. Parapsychologists, who research ESP and related psychic phenomena, categorize ESP into three main types: precognition, telepathy, and clairvoyance.
Precognition involves foreseeing future events, such as predicting an accident before it happens. An example of precognition could be someone dreaming about a specific event, like a car crash, which then occurs...
Parallel Processing01:20

Parallel Processing

The brain processes sensory information rapidly due to parallel processing, which involves sending data across multiple neural pathways at the same time. This method allows the brain to manage various sensory qualities, such as shapes, colors, movements, and locations, all concurrently. For instance, when observing a forest landscape, the brain simultaneously processes the movement of leaves, the shapes of trees, the depth between them, and the various shades of green. This enables a quick and...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Development of the national Dutch PEWS: the challenge against heterogeneity and implementation difficulties of PEWS in the Netherlands.

BMC pediatrics·2023
Same author

Contextual factors for the successful implementation of self-management interventions for chronic diseases: A qualitative review of reviews.

Chronic illness·2023
Same author

Decreased reward circuit connectivity during reward anticipation in major depression.

NeuroImage. Clinical·2022
Same author

"Get Used to the Fact That Some of the Care Is Really Going to Take Place in a Different Way": General Practitioners' Experiences with E-Health during the COVID-19 Pandemic.

International journal of environmental research and public health·2022
Same author

An evaluation of the efficacy of two add-on ecological momentary intervention modules for depression in a pragmatic randomized controlled trial (ZELF-i).

Psychological medicine·2020
Same author

Dynamics in typewriting performance reflect mental fatigue during real-life office work.

PloS one·2020
Same journal

Modelling the behaviour of physiological processes: On the lack of a scientific basis in medical science.

Communicative & integrative biology·2026
Same journal

Can bacteria control the human brain?

Communicative & integrative biology·2026
Same journal

Quantum mechanics in drug design: Progress, challenges, and future frontiers.

Communicative & integrative biology·2025
Same journal

An experimental approach to study foraging memory in ectomycorrhizal mycelium.

Communicative & integrative biology·2025
Same journal

Consciousness and spintronic coherence in microtubules.

Communicative & integrative biology·2025
Same journal

Identification of brain-like complex information architectures in embryonic tissue of <i>Xenopus laevis</i> organoids.

Communicative & integrative biology·2025
See all related articles

Related Experiment Video

Updated: May 23, 2026

Methods for Presenting Real-world Objects Under Controlled Laboratory Conditions
06:54

Methods for Presenting Real-world Objects Under Controlled Laboratory Conditions

Published on: June 21, 2019

Why do we see what's not there?

Jacob Jolij1, Maaike Meurs, Erwin Haitel

  • 1Vision and Cognition Group, Department of Experimental Psychology; Faculty of Behavioural and Social Sciences; University of Groningen; Groningen, The Netherlands.

Communicative & Integrative Biology
|March 27, 2012
PubMed
Summary
This summary is machine-generated.

Our perception relies on active inference, not just sensory input. Mood influences this process, potentially leading to illusory perceptions due to heightened top-down processing.

More Related Videos

A Method for Investigating Change Blindness in Pigeons (Columba Livia)
06:14

A Method for Investigating Change Blindness in Pigeons (Columba Livia)

Published on: September 7, 2018

Methods to Explore the Influence of Top-down Visual Processes on Motor Behavior
09:49

Methods to Explore the Influence of Top-down Visual Processes on Motor Behavior

Published on: April 16, 2014

Related Experiment Videos

Last Updated: May 23, 2026

Methods for Presenting Real-world Objects Under Controlled Laboratory Conditions
06:54

Methods for Presenting Real-world Objects Under Controlled Laboratory Conditions

Published on: June 21, 2019

A Method for Investigating Change Blindness in Pigeons (Columba Livia)
06:14

A Method for Investigating Change Blindness in Pigeons (Columba Livia)

Published on: September 7, 2018

Methods to Explore the Influence of Top-down Visual Processes on Motor Behavior
09:49

Methods to Explore the Influence of Top-down Visual Processes on Motor Behavior

Published on: April 16, 2014

Area of Science:

  • Cognitive Neuroscience
  • Psychology

Background:

  • Conscious perception involves active inference based on prior knowledge, not solely passive sensory processing.
  • Inferences can err, leading to illusory perceptions (seeing things not present).
  • Previous research indicated mood influences these inferential processes.

Purpose of the Study:

  • To present additional data on mood's influence on illusory perception.
  • To investigate the role of top-down processing in mood-related illusions.
  • To explore the functional significance of mood-dependent top-down modulation in social perception.

Main Methods:

  • Analysis of additional data from previous studies.
  • Examination of factors contributing to illusory percepts.
  • Speculative analysis on mood's role in social perception.

Main Results:

  • Illusory percepts are associated with increased top-down processing.
  • This heightened top-down processing is typically beneficial for stimulus detection.
  • Mood appears to modulate this top-down processing.

Conclusions:

  • Illusory perceptions may arise from overactive top-down predictive mechanisms.
  • Mood-dependent modulation of top-down processing could have specific functions, particularly in social contexts.